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US 2001/0011615 A1Published application
Speaker
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsMIKIO IWASA, HIROYUKI TAKEWA, KAZUE SATO
Life of this patent
Estimating the term…
Abstract
A speaker includes a diaphragm, a frame accommodating the diaphragm and an edge attached to an outer periphery of the diaphragm as well as to an inner periphery of the frame so as to retain the diaphragm within an interior of the frame. The edge has a thickness which is smallest at substantially a central portion between the diaphragm and the frame and the vicinity thereof, and increases toward the diaphragm and the frame.
Claims9
A speaker, comprising:
- a diaphragm;
- a frame accommodating the diaphragm;
- and
- an edge attached to an outer periphery of the diaphragm as well as to an inner periphery of the frame so as to retain the diaphragm within an interior of the frame,
- wherein the edge has a thickness which is smallest at substantially a central portion between the diaphragm and the frame and the vicinity thereof, and increases toward the diaphragm and the frame.
2 more elements
A speaker, comprising:
- a diaphragm;
- a frame accommodating the diaphragm;
- and
- an edge attached to an outer periphery of the diaphragm as well as to an inner periphery of the frame so as to retain the diaphragm within an interior of the frame,
- wherein a cross-section of the edge includes at least three roll-shaped portions including an innermost roll-shaped portion, an outermost roll-shaped portion and at least one central roll-shaped portion;
- and
- the innermost roll-shaped portion and the outermost roll-shaped portion each have a thickness greater than a thickness of the at least one central roll-shaped portion.
4 more elements
A speaker, comprising:
- a diaphragm;
- a frame accommodating the diaphragm;
- and
- an edge attached to an outer periphery of the diaphragm as well as to an inner periphery of the frame so as to retain the diaphragm within an interior of the frame,
- wherein a cross-section of the edge includes at least three roll-shaped portions including an innermost roll-shaped portion, an outermost roll-shaped portion and at least one central roll-shaped portion;
- and
- the innermost roll-shaped portion and the outermost roll-shaped portion each have a radius different from a radius of the at least one central roll-shaped portion.
4 more elements
A speaker, comprising:
- a diaphragm;
- a frame accommodating the diaphragm;
- and
- an edge attached to an outer periphery of the diaphragm as well as to an inner periphery of the frame so as to retain the diaphragm within an interior of the frame,
- wherein a cross-section of the edge includes at least three roll-shaped portions including an innermost roll-shaped portion, an outermost roll-shaped portion and at least one central roll-shaped portion;
- and
- the innermost roll-shaped portion and the outermost roll-shaped portion each have a thickness and a radius different from a thickness and a radius of the at least one central roll-shaped portion.
4 more elements
A speaker, comprising:
- a diaphragm;
- a frame accommodating the diaphragm;
- and
- an edge attached to an outer periphery of the diaphragm as well as to an inner periphery of the frame so as to retain the diaphragm within an interior of the frame,
- wherein the rigidity of the edge is smallest at substantially a central portion between the diaphragm and the frame, and increases toward the diaphragm and the frame.
2 more elements
Dependencies are inferred from the claim text.